baber/WOPTO huggingface dataset:
Patent GB-1029359-A (GB)
Title: Improvements relating to frequency dividers
IPC: G04G3/02
Filed: 1964-12-07
Abstract: 1,029,359. Pulse frequency dividing circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 7, 1964 [Dec. 5, 1963], No. 49617/64. Heading H3P. [Also in Division G4] In a frequency divider of the recirculating delay line type an input gate U1 controls the supply of pulses to delay line DL in groups, each group being of longer time duration than the preceding group, an output pulse being produced when the delay line is completely filled by a group of pulses. It is shown that the division ratio = T<SP>2</SP>/T 0 <SP>2</SP> or other high ratios, where T= transit time of the line and T 0  = input pulse period. As shown in Fig. 2, a start pulse from S is fed via an OR circuit O to an AND gate U1 where it gates one pulse from a 1 Mc/s. clock source Q via a pulse shaper I1 and input converter (not shown) to a delay line DL. It is shown that pulses from the delay line DL condition selected bi-stable triggers TR1 . . . TR6 so that they can be set or reset, as necessary, by the next clock pulse from Q. The trigger TR2 holds the recirculation loop closed for the duration of the whole train of pulses emerging from the delay line DL after which trigger TR3 adds a further pulse to the train. This action continues until the delay line is completely filled by a train of pulses, when trigger TR4 changes state and provides an output to a pulse shaper 12. Triggers TR5, TR6 arrange that the input gate U1 is then open for a period equal to the transit time of the delay line after which, a train of two pulses are supplied to the delay line and the sequence continues. An erase key L is provided to reset the sequence. Fig. 6 (not shown) relates to a combination of two of the systems shown in Fig. 2 having an overall division ratio = T<SP>4</SP>/To<SP>4</SP> which may = 10<SP>12</SP>.
Patent GB-1484109-A (GB)
Title: Gas seal assembly for gas turbine engine regenerator
IPC: F16J15/32
Filed: 1975-12-03
Abstract: 1484109 Seals DEERE & CO 3 Dec 1975 [4 Dec 1974] 49698/75 Heading F2B A multipart seal assembly 10, e.g. for sealing a rotatable disc regenerator in a gas turbine engine, includes a linear seal part 14 comprising a generally flat elongate base 92 having a first side 94 carrying low friction seal means, e.g. carbon blocks 98, and a sealing element holder 110 attached to the opposite side 96 and including two parallel flexible spaced-apart members 112, 114 extending in cantilever fashion from the base 92 and a floating sealing element 116 having a portion disposed between the spaced-apart members 112, 114 and a free margin 128 projecting from these members. The embodiment has three members 12, 14, 16 located on a housing (not shown) by pegs through a pair of slots 180, members 12 and 14 having rubbing faces formed from interlocking carbon blocks 40, 98 respectively. The three members 12, 14, 16 have cantilever plate springs as best seen in Fig. 5 and Figs. 2 and 3 (not shown) for static sealing to the housing, the springs being of varying complexity to suit the local conditions of pressure and temperature.
Patent GB-1025573-A (GB)
Title: Improvements in or relating to polymer processes and compositions
IPC: C08F279/04
Filed: 1963-12-17
Abstract: Impact-resistant thermoplastic materials are made by polymerizing a monoalkyl aromatic monomer, acrylonitrile and natural rubber or a diene synthetic rubber in the presence of an unsaturated dimer of alpha-methylstyrene or a derivative of the preferred monoalkenyl aromatic monomer is styrene, but halogen and alkyl derivatives of styrene and mixtures thereof with styrene may also be used. Synthetic rubbers specified are emulsion polymerized and cis-1,4-polybutadienes, butadienestyrene and butadiene-acrylonitrile copolymers and isoprene polymers.  The polymerization may be carried out in bulk, in aqueous emulsion or suspension, or in a two-stage process with prepolymerization in bulk followed by polymerization in aqueous suspension. Polymerization is initiated by peroxide, azo or redox catalysts.
Patent GB-1097665-A (GB)
Title: Improved lasing system
IPC: H01S3/101
Filed: 1966-11-08
Abstract: 1,097,665. Lasers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 8, 1966 [Dec. 6, 1965], No. 49884/66. Addition to 1,055,840. Heading H1C. A laser providing a directionally controlled output comprises two cavity reflectors 10, 11 between which are located a pair of active media 14, 15 and two lens systems consisting of planocylindrical lenses 20a, 20b and 21a, 21b, the lens systems being symmetrically disposed with respect to a common focal plane 27, and so arranged that parallel rays in either active medium are focused on a point in the plane which is characteristic of the direction in which the parallel rays extend. The resonant cavity also includes a Babinet compensator 45 located in the focal plane, and a pair of polarizers 40, 41 and a phase-delaying Kerr cell 43. With the Kerr cell energized the phase delay introduced by the cell is neutralized by the Babinet compensator at two points only in the focal plane, these points being symmetrical with respect to the laser axis 25. A phase delayed beam is attenuated by the polarizers if the delay is not fully neutralized; consequently laser emission takes place through the active media only along the parallel paths 30, 31, 32 which are focused on the phase neutralizing points 38, 39 in the focal plane 27. Two emergent beams 31<SP>1</SP>, 32<SP>1</SP> are obtained from semi-transparent reflector 11, the direction of these beams in a single plane being determined by the Kerr cell voltage. Ruby laser media may be used each with a reflective coating 10, 11, a light pumping source being common to both media. Alternatively a single active medium may be used. A two-directional scan is stated to be possible by using an orthogonal arrangement of a further Kerr cell and Babinet compensator and by replacing the optical lens systems with spherical lenses.
Patent GB-1130512-A (GB)
Title: Improvements in or relating to the manufacture of superphosphates
IPC: C05B1/02
Filed: 1965-11-24
Abstract: 1,130,512. Superphosphates. SOCIETE DE PRODUITS CHIMIQUES D'AUBY. 24 Nov., 1965 [21 May, 1965], No. 49901/65. Heading C1A. In the manufacture of superphosphates at least one surfactant of the cationic type is contacted with the superphosphate, e.g. calcium superphosphate. The rate of ripening and the physical properties of the superphosphate are thereby improved. The surfactant may have a cationic and a non-ionic part and may be a mixture of cationic and non-ionic surfactants. The surfactant may be oxyethylated C 8 -C 22  aliphatic amines or their salts.
Patent GB-1030010-A (GB)
Title: Improvements in or relating to aircraft
Inventor: IDDON KENNETH JAMES
IPC: H01Q1/28
Filed: 1963-12-18
Abstract: 1,030,010. Aerials. HAWKER SIDDELEY AVIATION Ltd. Dec. 14, 1964 [Dec. 18, 1963], No. 50006/63. Heading H4A. [Also in Division B7] A radar scanner in the nose of a high-speed aircraft is intended for use for low altitude weather reporting and for landing, and has a heat-insulating housing provided with a visor having heat-insulating sections 18-21 (Fig. 1, not shown). The forward sections 20, 21 of the visor are connected to an actuator (Fig. 3, not shown), and the rear sections are moved by abutments 28 or 30 on the forward sections engaging abutments 29 on the rear sections. The housing has a rearward extension 14 with cooling air connections 15, 16. The walls of the housing may be of sandwich construction, and the scanner and housing are contained in a dielectric radome 11.
Patent GB-501032-A (GB)
Abstract: 501,032. Exchange systems. ALLGEMEINE ELEKTRICITATS-GES. May 11, 1937, Nos. 13459 and 13460. Void. Convention dates, May 11, 1936, and July 31, 1936. [Class 40 (iv)] The Specification does not permit of satisfactory abridgment but it relates to a system of wired-wireless inter-exchange working in which a number of subexchanges a1-c1 each have a number of intermediate-frequency channels to a main exchange F1 connected by highfrequency channels to main exchange F2 having intermediate frequency channels to subexchanges a2-c2. The I.F. channels, e.g. ten in number, are of the same frequencies for all subexchanges and the channels of each exchange are fed to an individual group modulator at the main exchange F1 and demodulated by a group de-modulator at F2. This is disadvantageous since when one connection between two subexchanges is established, the other intermediate frequency channels of these exchanges are limited to use between the same exchanges. In one arrangement for giving greater flexibility, the I.F. channels from the subexchanges may be connected to the group modulator of any H.F. channel in which the required subchannel is available. I.F. channels of the same frequency incoming to F1 may, after demodulation of the H.F. channels at F2, result in I.F. channels all of the same frequency which may be different from the original frequency, or in I.F. channels of different frequencies. In another arrangement, modulators are provided for each subchannel over the H.F. portion of the system and the H.F. supplied to the modulators is selected according to the I.F. concerned. The system may also include low-frequency channels between sub- and main exchanges in which case modulation and demodulation of the H.F. channel are effected in one or more stages, and if there is a preponderance of low-frequency channels, all channels may be transposed to the low-frequency band at the main exchanges before modulation and demodulation of the H.F. channels so that interconnection thereat is effected over L.F. links. Alternativoly, interconnection may be effected over I.F. links of a common frequency.
Patent GB-1075489-A (GB)
Title: Improvements in means for exchanging units, each consisting of a shear blade and its mounting, in machines for shearing metal sheets or plates
IPC: B23D35/00
Filed: 1964-12-10
Abstract: 1,075,489. Shearing. SCHLOEMANN A.G. Dec. 10, 1964 [Jan. 15, 1964], No. 50262/64 Heading B3W. In an edge-trimming shear arranged at the side of a roller bed a device for facilitating the removal and replacement of the shear blades and their mountings comprises a carriage 10 guided on rails 9 and moved by a motordriven chain 26. Mounted in the carriage is a vertical fluid pressure cylinder 11 which carries on its piston-rod a support 14. Projecting vertically from the support are pegs 13 which engage in recesses 20 formed in the holder 4 for the upper blade 3. Also mounted on the support 14 is a fluid pressure cylinder 15 the piston-rod of which moves parallel to the rails 9, and which is connected to a set of pegs 18 which engage recesses 19 in the holder 7 of the lower blade 6. At the rear of the shear is a frame 21 which runs on rails 23 transverse to the rails 9, and which has two pairs of carrying arms 22 and 22<SP>1</SP>. Operation.-The support 14 is raised so that the pegs 13 engage the recesses 20, the upper blade holder 4 is unbolted and lowered with the support. The cylinder 15 is then operated so that the pegs 18 engage the lower blade and then both blades and their holders are moved on the carriage 10 to the rear of the shear where the blades are deposited on the arms 22. The frame 21 is then moved transversely of the rails 9 so that a set of sharpened blades resting on the arms 22<SP>1</SP> can be transferred to the carriage 10. In a modification, for use with a cropping shear arranged transversely of a roller bed the blade units are moved transversely of the roller bed and deposited on a carriage running on rails which are parallel to the bed.
Patent GB-1575940-A (GB)
Title: Heteropolyanion compounds containing tungsten combined with antimony
IPC: A61K33/24
Filed: 1977-12-02
Abstract: The heteropolyanion compounds of formulae II and VI, as well as those of formula III whose symbols M and M' are defined in Claim 8, are therapeutically useful by virtue of their antiviral activity. The compounds of formulae II and VI are obtained by adding a solution containing the Sb(III) ion to a solution of ammonium or potassium tungstate, and by collecting the precipitate. The compounds of formula III are obtained by treating the compound of formula II with an aqueous solution containing an alkali metal ion or alkaline-earth metal ion other than sodium. <IMAGE>
Patent GB-1152243-A (GB)
Title: Process for the Manufacture of Polymeric Diguanides
Inventor: DICKINSON JOHN DAVID
IPC: C08G73/00
Filed: 1965-11-26
Abstract: 1,152,243. Polymeric diguanides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 Nov., 1966 [26 Nov., 1965], No. 50340/65. Heading C3R. Polymeric diguanides are obtained by reacting a diamine of formula H 2 N-A-NH 2 , or an inorganic salt thereof, with a diamine salt of dicyanimide of formula where A and B are divalent aliphatic, cycloaliphatic, aromatic or heterocyclic radicals, at least the initial part of the reaction being carried out in a hydroxylic liquid which is a solvent for the reactants (e.g. water or an alcohol). The radicals A and B may be polymethylene chains which may be interrupted by oxygen or sulphur atoms or cyclic nuclei, and the total number of carbon atoms in A and B together may be between 9 and 17; A and B may be the same. The diamine salt of dicyanimide may be formed in the hydroxylic solvent and then reacted with the diamine or its salt, or, when A and B are the same, 1 equivalent of a metal salt of dicyanimide may be reacted with 2 equivalents of diamine or its salt in the hydroxylic solvent, the metal being precipitated as an insoluble compound. In examples dicyanimide diamine salts are obtained by reacting zinc dicyanimide, calcium dicyanimide and copper dicyanimide with hexamethylenediamine, and by reacting zinc dicyanimide with decamethylenediamine, and the products are reacted with hexamethylene diamine to obtain polymers; polymers also are obtained by reacting sodium dicyanimide with double quantities of hexamethylene diamine.
Patent GB-1305213-A (GB)
IPC: G01P3/54
Filed: 1970-10-23
Abstract: 1305213 Antiskid braking systems SAABSCANIA AB 23 Oct 1970 [27 Oct 1969] 50457/70 Heading F2F In an antiskid braking system, the brake release signal controlling solenoid valves on each wheel is generated when wheel lock occurs by comparing vehicle speed, obtained by integrating the output of an accelerometer 9 with a wheel speed obtained from a tachogenerator on each wheel, the vehicle speed being "updated" by means of a predicted vehicle speed obtained from an angular speed transducer signal of a reference wheel 19, intermittently released during braking. The speed signals from wheel 19 are transmitted to an updating circuit 32 which compares the signals with the integrated accelerometer output. Each wheel has an electronic circuit 20 forming part of an electronic circuit 8 and the individual wheel speed is measured by means of tachogenerator 6, 7 which passes a signal a to a pulse shaper 22 the output b of which drives a frequency halving flip-flop 23. Pulses c from flipflop 23 control an analogue gate 24 which switches a signal e, from integrator 31 of block 21 measuring vehicle speed to an integrator 25. The integrator 25 output h is compared at 26 with a predetermined value therein, adjustable by means of a potentiometer 36, Fig. 3 (not shown), the output j of which comparator 26 passes to a memory flip-flop 27 transmitting an output signal to a drive circuit 29 for the solenoid. True vehicle speed is compared with the accelerometer output in a top follower circuit comprising integrator 31 and updating circuit 32. For measuring vehicle speed by wheel 19 when the latter is free running pulses a derived therefrom are fed to constant pulse generator 34 in circuit 21, which is common to wheels 1, 19, to produce pulses summed by a filter in an operational amplifier 35 and exhibiting a simple exponential delay so that the output corresponds to the tap speed of wheel 19 when free running and this is the true vehicle speed.
Patent GB-504888-A (GB)
Abstract: 504,888. Sand-blast. BERG, B. Sept. 12, 1938, No. 26595. Convention date, Sept. 11, 1937. [Class 60] [Also in Group II] A sand - throwing wheel a with vanes b is associated with a fan c to which the sand is supplied, through a feed tube e. The sand may pass directly or through a pipe d to the inlet of the wheel a and the arrangements are such that the velocity of the material when entering the wheel is equal to or greater than the velocity of the vanes b at the inlet.
Patent GB-1506654-A (GB)
Title: Device for securing or releasing a connector
IPC: B25B29/02
Filed: 1975-12-09
Abstract: The apparatus consists of a supporting body (7) which can be put onto the flange of the cover (2) in a vertically adjustable manner and of clamping and releasing units, mounted on the supporting body (7), for the stud bolts (6) and fastening nuts (6.2) forming the cover bolting. When the apparatus is put on, drive pinions (9) of a rotary nut drive (10) engage in the external teeth (6.5) of the fastening nuts (6.2), and the free stud-bolt ends are coupled to gripping bodies (12). Furthermore, hydraulic clamping cylinders (13) are provided for axially extending the stud bolts (6) by axially loading the gripping bodies (12) via servo piston (13.1) during the unscrewing and tightening of the fastening nuts (6.2). The latter together with their stud bolts (6) can be unscrewed and removed with the apparatus. The clamping and releasing units are here provided with lifting and bearing means (15, 16), which can be controlled in engagement with regard to the stud bolts (6), in order to form a rotatable bearing arrangement relieving the weight for the thread turns, allocated to one another, of the stud bolts (6) and the pressure vessel, and, in addition to the rotary nut drive (10), the clamping and releasing units have a rotary drive (17) which can be brought into frictional engagement with the stud bolts (6). With this apparatus, it is possible to release not only the fastening nuts but also the stud bolts and then remove the entire cover bolting. <IMAGE>
Patent GB-1391134-A (GB)
Title: Purification of 1,1,2-trifluoro-2-chloroethyl difluoro- methyl ether
IPC: C07C43/12
Filed: 1973-11-01
Abstract: 1391134 Purification of 1,1 ,2-trifluoro-2- chloroethyl difluoromethyl ether AIRCO Inc 1 Nov 1973 [1 Nov 1972] 50777/73 Heading C2C 1,1,2 - Trifluoro - 2 - chloroethyl difluoromethyl ether is recovered from a reaction product containing an azeotropic mixture of CHF 2 OCF 2 CHFCl and CHCl 3  by reacting the product containing the azeotropic mixture at e.g. 30 to 100 C. with an aqueous solution of a basic compound selected from a basic alkali metal hydroxide or Ca (OR) 2  in the presence of a water soluble alkanol of 1 to 6 carbon atoms or ethylene glycol. The basic compound is used in an amount of at least four moles basic compound per mole of CHCl 3  and the alkanol is used in an amount in excess of 0.1 parts by volume per volume of aqueous solution. The reaction mixture is refluxed sufficiently to destroy the CHCl 3  and the essentially pure is recovered from the reaction mixture by fractional distillation.
Patent GB-1354207-A (GB)
Title: Stereoscopic enhancement of pictorial displays
IPC: G02B27/22
Filed: 1972-11-09
Abstract: 1354207 Enhancing stereoscopic effect GENERAL ELECTRIC CO 9 Nov 1972 [15 Nov 1971] 51751/72 Heading G2J A two dimensional display is viewed through an annular frame that is opaque at its periphery and increases its transparency, in non-linear manner, towards the centre of the piston. (For Figure see next page)
Patent GB-1291458-A (GB)
Title: Method of sintering powder bodies
Inventor: LUNDSTROM HANS
IPC: C03B19/06
Filed: 1969-10-23
Abstract: 1291458 Heating material under pressure ALLMANNA SVENSKA ELEKTRISKA AB 23 Oct 1969 [24 Oct 1968] 51895/69 Heading F4B  A sintered body is made by enclosing powdered material, particularly metal powder to make an alloy ingot, in a casing, evacuating and sealing the casing, heating the casing and introducing the casing from below into a furnace chamber enclosed in a pressure chamber, introducing pressure medium into the sealed furnace and heating the casing and material for a desired time under pressure. The powder is isostatically compacted and is preheated under atmospheric pressure. The furnace comprises an outer sheath 11, a pressure chamber wall 10, and an insulating sheath 17 suspended from and sealed to a top cover 13 for the pressure chamber. A cover 25 for the insulating sheath 17 and an inner sleeve 40 forming the furnace chamber proper are also suspended from the top cover 13. A bottom cover 51 is mounted to move vertically on a pillar 61, and seats in annular part 50 sealed to the pressure chamber wall 10 and carrying a sleeve 56 projecting between the insulating sheath 17 and the wall 40 of the furnace chamber proper. Heating elements 47 are mounted on the outside of the furnace chamber wall, and an insulated bottom closure 55 secured to the bottom 51 projects into the furnace chamber and serves as a support for a charge 16.
Patent GB-1200799-A (GB)
Title: Improvements in disc brakes
Inventor: BENSON JOHN MARSHALL
IPC: F16D55/00
Filed: 1967-11-16
Abstract: 1,200,799. Disc brakes. GIRLING Ltd. 14 Nov., 1968 [16 Nov., 1967], No. 52122/67. Heading F2E. A set-screw 41 is arranged in one of a pair of arms having grooves 20a to limit the play in the grooves of a yoke 11 supporting an indirectly operated brake pad 12. A spring 21 urges the yoke 11 against side walls of the grooves to prevent spragging. Operation is by a pair of pistons 14 and 15, the latter engaging a tongue 22 of the yoke 11. The set-screw 41 is adjusted  to reduce the clearance a to a value of 0À006 to 0À008 inch for noiseless operation, and is then locked in place, e.g. by peening.
Patent GB-1219678-A (GB)
Title: Respiratory apparatus
IPC: A61G10/02
Filed: 1968-11-04
Abstract: 1,219,678. Oxygen pressure chamber. O. H. DRAGER. 4 Nov., 1968 [4 Nov., 1967], No. 52234/68. Headings A5T and A5R. A chamber 1 containing pressurized air includes a mask 2 connected through an inhalation valve 5 to an oxygen supply controlled by a valve 7 which is operated by variations of pressure in the mask 2; the mask 2 is also connected through an exhalation valve 12 to a reception tube 28 in communication with the interior of the pressure chamber 1 and to the ambient atmosphere through a pressure reducer 24 and throttling element 26. A valve 23 connects the mask 2 to the interior of the pressure chamber 1. (For Figure see next column)
Patent GB-1196008-A (GB)
Title: A Process for the Continuous Preparation of Aromatic Mono- and Diisocyanates.
IPC: C07C265/12
Filed: 1967-11-17
Abstract: 1,196,008. Aromatic isocyanates. CHEMOKOMPLEX VEGYIPARI GEP ES BERENDEZES EXPORT-IMPORT VALLALAT. 17 Nov., 1967 [18 Nov., 1966], No. 52334/67. Heading C2C. An aromatic mono- or di-isocyanate is continuously prepared by reacting a monoamine or diamine respectively in an organic solvent with phosgene at 120-200‹ C., the amine being reacted with phosgene successively in two coupled reaction vessels and the phosgene being used in 5-20% stoichiometric excess. Suitable solvents are, for example, chlorinated aromatic hydrocarbons. Examples are given of the preparation of 2,4- and 2,6-tolylene-diisocyanate and diphenyl methane-p,p<SP>1</SP>-diisocyanate.
Patent GB-1196919-A (GB)
Title: Improvements in or relating to a method of making Garments, and to Garments when made by the said method
Inventor: ELLIOTT CYRIL
IPC: A41F9/02
Filed: 1966-11-23
Abstract: 1,196,919. Garment bands. JERSEYKAPWOOD Ltd. 12 Oct., 1967 [23 Nov., 1966], No. 52508/66. Heading A3V. A method of making a garment with an elastic waistband, cuff &c. an elastic strip 15 is positioned within a cover strip 14 during folding of the strip 14 to U-shape, the garment edge portion is introduced within the folded strip and edge portion and the cover strip are sewn together by rows of stitches 11a, 11b extending one on either side of the elastic strip which remains free to move within the cover strip. The margins of the cover strip are preferably folded back within the U-shape as shown. Apparatus for carrying out the method is the subject matter of Specification 1,196,920.